Articles tagged with Quantum Information
Researchers at the University of California, Riverside, have made a breakthrough in building larger and more reliable quantum computers by linking multiple quantum chips. The team found that even imperfect links between quantum chips can produce a functioning fault-tolerant quantum system.
Researchers at the University of Innsbruck have demonstrated a powerful node for quantum networks using a string of calcium ions in a prototype computer. The node achieved an average ion-photon entanglement fidelity of 92 percent, paving the way for connecting entire quantum processors across laboratories or continents.
Researchers successfully realized a stable, isolated quantum spin on an insulating magnesium oxide surface placed over a ferromagnetic iron substrate. The MgO/Fe(001) structure, widely used in spintronics, enables the formation of isolated spins due to its lack of conduction electrons.
Researchers have designed protein qubits that can be produced by cells naturally, opening possibilities for precision measurements of tissues, single cells, or even individual molecules. These protein-based qubits can detect signals thousands of times stronger than existing quantum sensors.
Researchers propose a quality management system for quantum technologies to ensure security, interoperability, transparency and accountability. International standards can facilitate cooperation among countries like China, the US, and Europe, creating trust in new technologies.
A new study demonstrates how a single type of 'neglecton' particle can make Ising anyons universal, enabling any quantum computation through braiding alone. The breakthrough uses non-semisimple topological quantum field theories to overcome unitarity issues and unlock the full power of Ising-based systems.
New experimental techniques can measure intense magnetic fields generated in heavy-ion collisions, shedding light on fundamental physics and the early universe. By studying magnetic field evolution over time, researchers can gain insights into QGP behavior and its effects on particles.
Researchers combined quantum computing with supercomputing to simulate large molecule stability and behavior, overcoming current barriers. The hybrid approach used a quantum computer for complex calculations and a supercomputer for error correction, enabling accurate predictions of molecule stability.
Physicists from Aalto University have measured a transmon qubit coherence time of over a millisecond, surpassing previous records and enabling more complex quantum computations. This breakthrough marks a significant step towards noiseless quantum computing.
Scientists at the University of Copenhagen have developed a way to transmit phonons through an ultra-thin membrane with almost no signal loss. This breakthrough has potential applications in quantum computing and sensing, where precise signal transfer is crucial.
Researchers unveiled an analogous law for the quantum world, proving that entanglement can be reversibly manipulated. An entanglement battery enables efficient manipulation of entanglement and other quantum phenomena.
Researchers propose a discrete-modulated coherent-state quantum key distribution scheme with basis-encoding, reducing post-processing complexity and improving reconciliation efficiency. Experimental results show significant enhancements in tolerating channel loss, achieving a key rate of 13.12 kbps under 11 dB of channel loss.
The latest issue of Optica Quantum features research on cryogenic photonic links for superconducting qubits, spatio-spectral quantum state estimation of photon pairs from optical fiber, and quantum optical reservoir computing powered by boson sampling. These studies demonstrate breakthroughs in measuring and optimizing quantum states, ...
A national pilot program led by UTA faculty is helping take the mystery out of quantum physics for students and educators. The program, Quantum for All, provides hands-on curriculum and classroom strategies to equip high school science teachers with the tools they need to teach quantum science.
A team of researchers from the University of Sydney has developed a silicon chip that can control spin qubits at milli-kelvin temperatures, paving the way for scaling up quantum transistors from under 100 to millions. This breakthrough technology has the potential to make practical quantum computers a reality.
Researchers from OIST develop new quantum AI method for image recognition based on boson sampling, achieving highly accurate results without complex training. The approach uses a linear optical network and preserves information, outperforming classical methods in various datasets.
The Quantum Technician Bootcamp at Central New Mexico Community College is a 400-hour course that provides students with hands-on skills necessary for job placement in the quantum industry. The program, led by Sandia National Laboratories and CNM, aims to address the shortage of trained workers in the field.
Researchers at UBC propose a silicon-based device that can convert microwave to optical signals with high efficiency, paving the way for long-distance quantum communication. The technology preserves entangled links between particles, essential for quantum networking.
The Berggren Center for Quantum Biology and Medicine will merge quantum technology with biology to transform medicine, driving the development of revolutionary quantum tools and cultivating bilingual scholars. Researchers will translate quantum advances into clinical solutions, enabling new diagnostics and therapies.
Researchers have developed a new type of exotic quantum material that can maintain its quantum properties when exposed to external disturbances, paving the way for robust quantum computers. The breakthrough uses magnetism to create stability, making it an important step towards realising practical topological quantum computing.
The fifth annual Quantum Science Center Summer School at Purdue University welcomed its largest group of students, with a focus on introductory presentations and technical talks. Graduate students and doctoral candidates led the program, which covered topics such as quantum materials, devices, and algorithms.
Researchers at Rice University confirm a decade-old prediction of boron atoms sticking too tightly to copper, forming a new compound with distinct atomic structure. The discovery expands knowledge on 2D metal boride materials, which could inform future studies in electronics and energy applications.
Researchers create new quantum biosensor using diamond nanoparticles and specially engineered shell, outperforming previous attempts. The breakthrough sheds light on a longstanding mystery in quantum materials and shows up to fourfold improvements in spin coherence.
Researchers at Caltech successfully controlled the motion of individual atoms, encoding quantum information, and demonstrated hyper-entanglement in massive particles. This experiment could lead to advancements in quantum computation and precision clocks.
Researchers at University of Chicago Pritzker School of Molecular Engineering discovered one of the world's thinnest semiconductor junctions within a quantum material. The discovery could lead to ultra-miniaturized electronic components and provides insight into electron behavior in materials designed for quantum applications.
Researchers at U of A create a transistor that operates at speeds over 1,000 times faster than modern computer chips. The breakthrough uses quantum effects to manipulate electrons in graphene, enabling ultrafast processing for applications in space research, chemistry, and healthcare.
The new Priority Program will focus on developing IT components utilizing altermagnetism, which combines the benefits of ferromagnets and antiferromagnets. Researchers aim to overcome current limitations and achieve a significant increase in efficiency and speed.
Researchers explore evaluation methods for sensitivity limits of quantum magnetometers, revealing intrinsic connections and relationships between quantum characteristics. The study advances theoretical development in quantum magnetometry and experimental optimization.
Scientists have successfully demonstrated a complete set of quantum gates with error probabilities below 0.1%, paving the way for reliable quantum computation. The breakthrough was achieved using diamond spin qubits, which operate at high temperatures and are well-protected from noise.
Researchers developed a new computing scheme that works at extremely low temperatures, significantly reducing latency between AI agents and quantum processors while boosting energy efficiency. The solution utilizes magnetic topological insulator Hall-bar devices to enable efficient implementation of reinforcement learning algorithms.
Researchers at the University of Arizona are using two federal grants to develop novel areas in quantum information. They aim to improve measurement capabilities of quantum magnetic field sensors, which could impact navigation, medical imaging, and other fields. Additionally, they will work on developing quantum low-density parity-chec...
The Global Physics Summit will feature nearly 1,200 sessions and 14,000 presentations on various topics, including astrophysics, climate science, medicine, and quantum information. Registered journalists and public information officers will receive daily emails with meeting information.
Engineers at Caltech have successfully demonstrated the operation of a quantum network with two nodes and multiple qubits. The researchers developed a new protocol for distributing quantum information in parallel, creating multiple channels for sending data, which significantly boosts quantum communication rates between nodes.
The discovery of chromium sulfide bromide's magnetic properties enables the confinement of excitons to a single line, confining quantum information for longer periods. This could be a game changer for future electronics and information technology, enabling applications in quantum computing and sensing.
Researchers developed a novel approach to maintain quantum characteristics in three-dimensional materials by exploiting the magnetic properties of chromium sulfide bromide. This method enables the preservation of excitons' unique optical properties and their ability to carry energy without charge, making it suitable for advanced optica...
Researchers at Johannes Gutenberg University Mainz are working on a subproject to investigate theoretical modeling and experimental realization of concepts for quantum repeaters. They aim to reduce transmission losses and generate high-quality quantum states to build secure quantum networks.
Researchers from Okayama University create nanodiamonds with nitrogen-vacancy centers, exhibiting strong fluorescence and stable spin states for biological applications. The developed nanodiamonds have improved spin quality compared to bulk diamonds, making them suitable for bioimaging and quantum sensing.
The University of Michigan's QuPID project seeks to develop robust quantum systems for applications like environmental monitoring, GPS navigation and semiconductor chip quality control. The team aims to create design kits for global adaptation and simplify instrumentation needed to manipulate light properties.
Researchers at UChicago Pritzker School of Molecular Engineering have designed a new architecture for scaling up superconducting quantum devices. The modular design allows for flexible operability and enables the connection of any two qubits within a few nanoseconds, promoting high-fidelity quantum gates and entanglement.
Researchers from Linköping University confirmed a direct connection between quantum theory and information theory, revealing the degree of unknown information in a quantum system. The study used a new experimental setup to demonstrate the equivalence of entropic uncertainty with wave-particle duality.
Dr Florian Kaiser leads €3 million ERC Consolidator Grant-funded research on quantum integration, aiming to create practical applications and overcome scalability challenges in quantum technologies. The goal is to integrate quantum processors and memories on a single chip, enabling superior performance and minimal energy consumption.
A three-dimensional quantum error correction architecture was discovered, which can handle errors scaling like L<sup>2</sup> (LxL) in two-dimensions. This breakthrough promises to enhance the reliability of quantum information storage and reduce physical computing resources needed for 'logical qubits', paving the way for a more compact
Researchers at the University of Chicago have developed a new way to measure the behavior of single electron defects in diamond, which can destroy quantum state memory. By studying the defects' spin and charge dynamics, scientists hope to create even better quantum sensors with long coherence times.
Researchers at KIT have controlled tin-vacancy center qubits in diamonds using microwaves, achieving coherence times of up to ten milliseconds. This is a major improvement for the development of diamond-based quantum computers and secure fiber-based quantum communication.
Scientists from Brookhaven National Laboratory have developed a new type of qubit that can be easily manufactured without sacrificing performance. The constriction junction architecture offers a simpler alternative to traditional SIS junctions, using a thin superconducting wire instead of an insulating layer.
Researchers from Delft University of Technology initiated a controlled movement in an atom's nucleus, interacting with an electron and reading it out using a scanning tunneling microscope. This interaction enables the storage of quantum information inside the nucleus, protected from external disturbances.
Researchers at the University of Bonn have successfully created a Bose-Einstein condensate on a super photon using tiny nano molds. This allows for the shaping of light into a simple lattice structure, which could be used to make information exchange between multiple participants tap-proof.
Scientists at NIST have created tiny lasers that generate light at yellow and green wavelengths, filling a long-standing gap in the visible-light spectrum. The new technology has potential applications in underwater communications, medical treatments, and quantum computing.
Scientists at Penn State created a robust quantum highway with a switch to control electron movement, enabling the fabrication of advanced quantum devices. The innovation allows for precise control over electron flow, reducing backscattering and increasing the potential for quantum computing applications.
A team of researchers has developed a platform to probe, interact with and control quantum systems in silicon. They used an electric diode to manipulate qubits inside a commercial silicon wafer, exploring how the defect responds to changes in the electric field and tuning its wavelength within the telecommunications band.
Scientists have demonstrated spontaneous parametric down-conversion in a liquid crystal, creating entangled photon pairs with high efficiency. The discovery enables flexible and electric-field-tunable quantum light sources.
Researchers at Lancaster University and Radboud University Nijmegen have discovered a novel pathway to modulate and amplify spin waves at the nanoscale, paving the way for dissipation-free quantum information technologies. The study's findings could lead to the development of fast and energy-efficient computing devices.
Researchers at the University of Innsbruck developed a novel method using diffusion models to generate quantum circuits. The model can produce accurate and flexible circuits, including those tailored to specific quantum hardware connections.
A new device uses small amounts of light to process information, offering significant energy improvements over conventional optical switches. This technology could enable quantum communications, providing a promising alternative for data security against rising cyberattacks.
Scientists at the University of Rochester have developed a technique for pairing particles of light and sound, allowing for faithful conversion of information stored in quantum systems. The method uses surface acoustic waves, which can be accessed and controlled without mechanical contact, enabling strong quantum coupling on any material.
The Princeton Plasma Physics Laboratory has opened a new Quantum Diamond Lab to study plasma processes for creating diamond material with unique properties. Scientists aim to harness this material for quantum computing, secure communication, and precise measurements, enabling breakthroughs in fields like medicine and energy.
Researchers developed an approach called Quantum Noise Injection for Adversarial Defense (QNAD) to protect quantum computers from attacks. The method introduces noise into the quantum neural network, making it more accurate during an attack.
Scientists have created a novel instrument that enables the precise measurement of superconductors under extreme pressure, overcoming existing limitations. The new tool uses quantum sensors integrated into a standard pressure-inducing device, allowing for direct imaging of the material's behavior.
Physicists at Princeton University have observed long-range quantum coherence effects due to Aharonov-Bohm interference in a bismuth bromide topological insulator-based device. This finding could lead to the development of spin-based electronics with higher energy efficiency and new platforms for quantum information science.
A new technology has been developed to transmit quantum information over tens to hundred micrometers, improving the functionality of upcoming quantum electronics. The researchers use a terahertz split-ring resonator and confine only a few electrons to an ultra-small area.